MuckyFoot-UrbanChaos/fallen/Editor/Source/undo.cpp

#include	"Editor.hpp"

#include	"undo.hpp"
#include	"edit.h"
#include	"prim.h"
#include	"c:\fallen\headers\memory.h"

Undo::Undo(void)
{
	index=1;
	index_undo=1;
		
}


void	Undo::advance_current_undo(UBYTE undo_mode)
{
	if(!undo_mode)
	{
		index++;
		if(index>=MAX_UNDO)
			index=1;
	}
	else
	{
		index_undo++;
		if(index_undo>=MAX_UNDO)
			index_undo=1;

	}
}

void	Undo::retreat_current_undo(UBYTE undo_mode)
{
	if(undo_mode)
	{
		index_undo--;
		if(index_undo<1)
			index_undo=MAX_UNDO-1;
	}
	else
	{
		index--;
		if(index<1)
			index=MAX_UNDO-1;

	}
}

void	Undo::MoveTexture(UBYTE undo_mode,UWORD page,UWORD face,UBYTE u1,UBYTE v1,UBYTE u2,UBYTE v2,UBYTE u3,UBYTE v3,UBYTE u4,UBYTE v4)
{
	struct	GenericUndo	*p_u;
	
	if(undo_mode)
		p_u=&undo_undo_info[index_undo];
	else
		p_u=&undo_info[index];

	p_u->Type=UNDO_MOVE_TEXTURE;
	p_u->Texture.Page=page;
	p_u->Texture.U[0]=u1;
	p_u->Texture.U[1]=u2;
	p_u->Texture.U[2]=u3;
	p_u->Texture.U[3]=u4;
	p_u->Texture.V[0]=v1;
	p_u->Texture.V[1]=v2;
	p_u->Texture.V[2]=v3;
	p_u->Texture.V[3]=v4;
	advance_current_undo(undo_mode);
}


void	Undo::ApplyPrim4(UBYTE undo_mode,UWORD face,PrimFace4 *the_prim4)
{
	SLONG				c0;
	struct GenericUndo	*p_u;

	
	if(undo_mode)
		p_u=&undo_undo_info[index_undo];
	else
		p_u=&undo_info[index];

	p_u->Type				=	UNDO_APPLY_PRIM4;
	p_u->Texture.DrawFlags	=	the_prim4->DrawFlags;
	p_u->Texture.Colour		=	the_prim4->Col2;
	p_u->Texture.Face		=	face;
	p_u->Texture.Page		=	the_prim4->TexturePage;
	for(c0=0;c0<4;c0++)
	{
		p_u->Texture.U[c0]	=	the_prim4->UV[c0][0];
		p_u->Texture.V[c0]	=	the_prim4->UV[c0][1];
	}
	advance_current_undo(undo_mode);
}

void	Undo::ApplyPrim3(UBYTE undo_mode,UWORD face,PrimFace3 *the_prim3)
{
	SLONG				c0;
	struct GenericUndo	*p_u;

	
	if(undo_mode)
		p_u=&undo_undo_info[index_undo];
	else
		p_u=&undo_info[index];

	p_u->Type				=	UNDO_APPLY_PRIM3;
	p_u->Texture.DrawFlags	=	the_prim3->DrawFlags;
	p_u->Texture.Colour		=	the_prim3->Col2;
	p_u->Texture.Face		=	face;
	p_u->Texture.Page		=	the_prim3->TexturePage;
	for(c0=0;c0<3;c0++)
	{
		p_u->Texture.U[c0]	=	the_prim3->UV[c0][0];
		p_u->Texture.V[c0]	=	the_prim3->UV[c0][1];
	}
	advance_current_undo(undo_mode);
}

void	Undo::ApplyTexturePrim4(UBYTE undo_mode,UWORD page,UWORD face,UBYTE u1,UBYTE v1,UBYTE u2,UBYTE v2,UBYTE u3,UBYTE v3,UBYTE u4,UBYTE v4)
{
	struct	GenericUndo	*p_u;
	
	if(undo_mode)
		p_u=&undo_undo_info[index_undo];
	else
		p_u=&undo_info[index];

	p_u->Type=UNDO_APPLY_TEXTURE_PRIM4;
	p_u->Texture.Face=face;
	p_u->Texture.Page=page;
	p_u->Texture.U[0]=u1;
	p_u->Texture.U[1]=u2;
	p_u->Texture.U[2]=u3;
	p_u->Texture.U[3]=u4;
	p_u->Texture.V[0]=v1;
	p_u->Texture.V[1]=v2;
	p_u->Texture.V[2]=v3;
	p_u->Texture.V[3]=v4;
	advance_current_undo(undo_mode);
}

void	Undo::ApplyTexturePrim3(UBYTE undo_mode,UWORD page,UWORD face,UBYTE u1,UBYTE v1,UBYTE u2,UBYTE v2,UBYTE u3,UBYTE v3)
{
	struct	GenericUndo	*p_u;
	
	if(undo_mode)
		p_u=&undo_undo_info[index_undo];
	else
		p_u=&undo_info[index];

	p_u->Type=UNDO_APPLY_TEXTURE_PRIM3;
	p_u->Texture.Face=face;
	p_u->Texture.Page=page;
	p_u->Texture.U[0]=u1;
	p_u->Texture.U[1]=u2;
	p_u->Texture.U[2]=u3;
	p_u->Texture.V[0]=v1;
	p_u->Texture.V[1]=v2;
	p_u->Texture.V[2]=v3;
	advance_current_undo(undo_mode);
}

void	Undo::ApplyTextureCube(UBYTE undo_mode,UWORD ele,UWORD face,UWORD text1,UWORD text2)
{
	struct	GenericUndo	*p_u;
	
	if(undo_mode)
		p_u=&undo_undo_info[index_undo];
	else
		p_u=&undo_info[index];

	p_u->Type=UNDO_APPLY_TEXTURE_CUBE;
	p_u->Ele.Ele=ele;
	p_u->Ele.Face=face;
	p_u->Ele.Text1=text1;
	p_u->Ele.Text2=text2;
	advance_current_undo(undo_mode);
}

void	Undo::PlaceObject(UBYTE undo_mode,UWORD prim,UWORD thing,SLONG x,SLONG y,SLONG z)
{
	struct	GenericUndo	*p_u;
	
	if(undo_mode)
		p_u=&undo_undo_info[index_undo];
	else
		p_u=&undo_info[index];

	p_u->Type=UNDO_PLACE_OBJECT;
	p_u->Object.Prim=prim;
	p_u->Object.Thing=thing;
	p_u->Object.X=x;
	p_u->Object.Y=y;
	p_u->Object.Z=z;
	advance_current_undo(undo_mode);
}

void	Undo::PlaceCube(UBYTE undo_mode,UWORD prev_cube,UWORD cur_cube,SLONG x,SLONG y,SLONG z)
{
	struct	GenericUndo	*p_u;
	
	if(undo_mode)
		p_u=&undo_undo_info[index_undo];
	else
		p_u=&undo_info[index];
 
	p_u->Type=UNDO_PLACE_OBJECT;
	p_u->Cube.PCube=prev_cube;
	p_u->Cube.CCube=cur_cube;
	p_u->Cube.X=x;
	p_u->Cube.Y=y;
	p_u->Cube.Z=z;
	advance_current_undo(undo_mode);
}

void	Undo::DelObject(UBYTE undo_mode,UWORD prim,UWORD thing,SLONG x,SLONG y,SLONG z)
{
	struct	GenericUndo	*p_u;
	
	if(undo_mode)
		p_u=&undo_undo_info[index_undo];
	else
		p_u=&undo_info[index];
  
	p_u->Type=UNDO_DEL_OBJECT;
	p_u->Object.Prim=prim;
	p_u->Object.Thing=thing;
	p_u->Object.X=x;
	p_u->Object.Y=y;
	p_u->Object.Z=z;
	advance_current_undo(undo_mode);
}

void	Undo::MoveObject(UBYTE undo_mode,UWORD thing,SLONG dx,SLONG dy,SLONG dz)
{
	struct	GenericUndo	*p_u;
	
	if(undo_mode)
		p_u=&undo_undo_info[index_undo];
	else
		p_u=&undo_info[index];

	p_u->Type=UNDO_MOVE_OBJECT;
	p_u->Object.Thing=thing;
	p_u->Object.X=dx;
	p_u->Object.Y=dy;
	p_u->Object.Z=dz;
	advance_current_undo(undo_mode);
}


SLONG	Undo::DoUndo(UBYTE undo_mode)
{
	struct	GenericUndo	*p_u;
	SLONG	c0,
			i;


	retreat_current_undo(undo_mode);
	if(undo_mode)
	{
		i=index_undo;
		p_u=&undo_undo_info[i];
	}
	else
	{
		i=index;
		p_u=&undo_info[i];
	}


	switch(p_u->Type)
	{
		case	UNDO_APPLY_TEXTURE_PRIM4:
			prim_faces4[p_u->Texture.Face].TexturePage=p_u->Texture.Page;
			prim_faces4[p_u->Texture.Face].UV[0][0]=p_u->Texture.U[0];
			prim_faces4[p_u->Texture.Face].UV[1][0]=p_u->Texture.U[1];
			prim_faces4[p_u->Texture.Face].UV[2][0]=p_u->Texture.U[2];
			prim_faces4[p_u->Texture.Face].UV[3][0]=p_u->Texture.U[3];

			prim_faces4[p_u->Texture.Face].UV[0][1]=p_u->Texture.V[0];
			prim_faces4[p_u->Texture.Face].UV[1][1]=p_u->Texture.V[1];
			prim_faces4[p_u->Texture.Face].UV[2][1]=p_u->Texture.V[2];
			prim_faces4[p_u->Texture.Face].UV[3][1]=p_u->Texture.V[3];
			break;
		case	UNDO_APPLY_TEXTURE_PRIM3:
			prim_faces3[p_u->Texture.Face].TexturePage =p_u->Texture.Page;
			prim_faces3[p_u->Texture.Face].UV[0][0]=p_u->Texture.U[0];
			prim_faces3[p_u->Texture.Face].UV[1][0]=p_u->Texture.U[1];
			prim_faces3[p_u->Texture.Face].UV[2][0]=p_u->Texture.U[2];

			prim_faces3[p_u->Texture.Face].UV[0][1]=p_u->Texture.V[0];
			prim_faces3[p_u->Texture.Face].UV[1][1]=p_u->Texture.V[1];
			prim_faces3[p_u->Texture.Face].UV[2][1]=p_u->Texture.V[2];
			break;
		case	UNDO_APPLY_TEXTURE_CUBE:
			break;
		case	UNDO_PLACE_OBJECT:
			map_things[p_u->Object.Thing].Type=0;
			delete_thing_from_edit_map(p_u->Object.X,p_u->Object.Y,p_u->Object.Thing);
			break;
		case	UNDO_DEL_OBJECT:
			break;
		case	UNDO_MOVE_OBJECT:		

			MoveObject(undo_mode?0:1,p_u->Object.Thing,map_things[p_u->Object.Thing].X,map_things[p_u->Object.Thing].Y,map_things[p_u->Object.Thing].Z);
			map_things[p_u->Object.Thing].X=p_u->Object.X;
			map_things[p_u->Object.Thing].Y=p_u->Object.Y;
			map_things[p_u->Object.Thing].Z=p_u->Object.Z;

			break;
		case	UNDO_PLACE_CUBE:
			break;
		case	UNDO_MOVE_TEXTURE:
			return(undo_mode?-i:i);
			break;
		case	UNDO_APPLY_PRIM4:
			prim_faces4[p_u->Texture.Face].DrawFlags	=	p_u->Texture.DrawFlags;
			prim_faces4[p_u->Texture.Face].Col2	=	p_u->Texture.Colour;
			prim_faces4[p_u->Texture.Face].TexturePage	=	p_u->Texture.Page;
			for(c0=0;c0<4;c0++)
			{
				prim_faces4[p_u->Texture.Face].UV[c0][0]		=	p_u->Texture.U[c0];
				prim_faces4[p_u->Texture.Face].UV[c0][1]		=	p_u->Texture.V[c0];
			}
			break;
		case	UNDO_APPLY_PRIM3:
			prim_faces3[p_u->Texture.Face].DrawFlags	=	p_u->Texture.DrawFlags;
			prim_faces3[p_u->Texture.Face].Col2	=	p_u->Texture.Colour;
			prim_faces3[p_u->Texture.Face].TexturePage	=	p_u->Texture.Page;
			for(c0=0;c0<3;c0++)
			{
				prim_faces3[p_u->Texture.Face].UV[c0][0]		=	p_u->Texture.U[c0];
				prim_faces3[p_u->Texture.Face].UV[c0][1]		=	p_u->Texture.V[c0];
			}
			break;
	}
	p_u->Type=0;
	return(0);
}